An analytic optimization technique for placement of macro-cells

  • Authors:
  • A. Herrigel;W. Fichtner

  • Affiliations:
  • Integrated System Laboratory, Swiss Federal Institute of Technology Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland;Integrated System Laboratory, Swiss Federal Institute of Technology Zurich, Gloriastrasse 35, 8092 Zurich, Switzerland

  • Venue:
  • DAC '89 Proceedings of the 26th ACM/IEEE Design Automation Conference
  • Year:
  • 1989

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Abstract

This paper discusses the placement of R (rectangular) or L-shaped blocks, such as in macro-cell design. We present a new analytic approach that simultaneously accounts for different criteria (wire length, chip area). We characterize a solution by the associated adjacency graph [1] and derive an optimization technique with an active set method [2]. Results on a test problem are given to prove the performance and feasibility of this technique.